#11
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The MS750 OS is designed to be left on. Even though it is in standby mode, the "computer" is still running. A well written OS goes through a shutdown process closing files, etc but not the MS750 OS. Just unplugging the unit works most of the time but if a hard drive write is in process, it can wreak havoc with the OS on the hard drive. None the less, Ivan is correct.
The Air Force studied fluorescent lights in the 1960's and found that it is cheaper and better for the light to be left on unless it was going to remain off for more than 8 hours. With the same thinking, I would use 7 to 10 days as a time for the MS750. If it will be 7 to 10 days or longer, unplug it. Otherwise, leave it on. For my personal use, I use 14 days as the cutoff. |
#12
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When I travel between homes, I unplug my MS750's. Why have them spin unecessesarily for months on end.
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Ivan FLORIDA MX136, MC1.2KW(10) MC2KW(2), MCD1100, MS750(2) MVP881, C1000C/P/T, MPC1500, HT-2 SUBS(2) HT3F(2) WS350(2) XRT2K, XCS2K, XR27(2) XCS350(2) JL GOTHAM v2 SUBS(2) SILENZIO MUSIC SERVER, LUMAGEN RADIANCE SCALER, SONY VPH-G90U 4K PROJECTOR, STEWART 120" MOTORIZED SCREEN, CINEMA-TECH SEATING, WW PLATINUM CABLES Reference System: ACCUPHASE A300 AMPS, C3900 PRE-AMP, DP1000 CD/SACD TRANSPORT, DC1000 DIGITAL PROCESSOR, DG-68 DIGITAL EQUALIZER, T1200 FM STEREO TUNER, PS1230 POWER SUPPLY, HRS-SXR CUSTOM RACK w/ M3X SHELVES, TAD REFERENCE ONE MK2 LOUDSPEAKERS, WW PLATINUM CABLES CAPE COD MX150, MC501(2) MC1.2KW(10) MC2301(2) MR88, MVP881, MCD1100, MDA1000, C1000C/P/T, MPC1500, ESOTERIC K-01X 30th ANNIVERSARY (BLACK) SACD/CD PLAYER, G02-X CLOCK, HT3F(2) XRT2K, XCS2K, XR27(2) JL GOTHAM v2 SUBS(2) JL FATHOM F113v2 SUBS(4) SOUND ANCHOR STANDS(2) KALEIDESCAPE STRATO & TERRA SERVERS 80-TB, LUMAGEN RADIANCE SCALER, SONY VPH-G90U 4K PROJECTOR, STEWART 120" SCREEN, SONUS FABER STRADIVARI, SILENZIO MUSIC SERVER, FORTRESS SEATING, WW PLATINUM CABLES Analog Rig: CLEARAUDIO INNOVATION WOOD, UNIVERSAL ARM w/ Da VINCI' CART, 2nd UNIVERSAL ARM w/ GOLDFINGER STATEMENT CART, HRS-MXR REFERENCE RACK-GLOSS BLACK w/ M3X SHELVES, AESTHETIX RHEA SIG PHONO-PRE, BRYSTON BHA-1 HEADPHONE AMP, WW PLATINUM CABLES Reference System: BURMESTER 911MK3 AMP(3), 088 PRE-AMP, 089 CD PLAYER, 100 PHONO PRE-AMP, 948 POWER CONDITIONER, ACCUPHASE DG-68 VOICING EQUALIZER, AVID ACUTUS REFERENCE SP TT, GRAHAM PHANTOM II SUPREME ARM, BENZ MICRO LP-S CART, GRANDIOSO P1X/D1X STACK, G1X RUBIDIUM MASTER CLOCK, N05 NETWORK PLAYER, SILENZIO MUSIC SERVER, HRS-SXR CUSTOM RACK w/ M3X SHELVES, SONUS FABER AIDA SPEAKERS, JL FATHOM F113v2 SUBS(2) SOUND ANCHOR STANDS(2) WW PLATINUM CABLES Library System: GRANDIOSO M1 MONOBLOCK AMPS, C1 LINESTAGE PRE-AMP, K1X CD/SACD PLAYER, G1 MASTER RUBIDIUM CLOCK, E02 PHONO-PRE, SILENZIO MUSIC SERVER, AERIAL ACOUSTICS 20T V2, AERIAL SW12 SUBS(2), CANTON REF K1’s, VPI HRX TT w/ SDS POWER SUPPLY, ORTOFON CADENZA BLACK CART, KLAUDIO RCM, SHUNYATA DENALI 6000/S v2, SHUNYATA OMEGA QR’s, WW PLATINUM CABLES Esoteric/Bryston System: ESOTERIC C02-X PRE-AMP, P-02X TRANSPORT, D02-X DAC, G02-X CLOCK, BRYSTON 28B3 CUBED MONOBLOCK AMPS(4), BRYSTON BHA-1 HEADPHONE AMP, SHUNYATA DENALI 6000/S v2(2) EVEREST 8000 POWER CONDITIONER(2) ALTAIRA CG & SG HUBS, AMR-DP777-SE DAC, SILENZIO MUSIC SERVER, TAD REFERENCE ONE MK2 LOUDSPEAKERS, QUADRASPIRE RACK, WW PLATINUM CABLES Accuphase/Canton System: ACCUPHASE E800 INTEGRATED, DP570 CD/SACD PLAYER, T1200 FM STEREO TUNER, DG-68 VOICING EQUALIZER, PS530 POWER SUPPLY, CANTON REF K3’s, CANTON REF K5’s, SILENZIO MUSIC SERVER, HRS MXR REFERENCE MAHOGHANY RACK w/ M3X2 SHELVES, WW GOLD CABLES |
#13
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#14
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One thing I have noticed, if I unplug the unit shortly after it just finished booting (I've done this numerous times while troubleshooting), I will lose cover art. It's because I haven't given it time to properly index. Bottom line, leave it powered for a while to do its thing after restoring power.
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#15
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Turning Off MSxxx
There is a "sticky" thread on the MSxxx power supply situation. That seems to be the "weak link" for this unit.
One post on that thread identified the operating system as an very early OS (i.e., similar to what was use on US orbital space craft in the 1970s). I am not familiar with the specific operating system, but having been involved with programming computers since 1968, I remember that early operating systems did not do a very good job of protecting the hard drive from physical damage from the read/write head if power was unexpectedly removed. Many hard drives in that era were permanently damaged when power was cut off, and the read/write head (loosing its control function) skipped across the drive platter like a stone over water, leaving gashes in its wake. The drives used by McIntosh in the MS300 and MS750 may have some hardware control over such a catastrophe. But I do not know. Since I do not know, I do not want to trust what I do not know. I suggest using the power button on the front of the machine, or on the remote, out of an abundance of caution. Thanks, Jim Carlson |
#16
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Quote:
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TAD Reference One MK2 Loudspeakers, Esoteric Grandioso M1 Monoblock Amplifiers, Esoteric Grandioso C1 Linestage Preamplifier, SilenZio Music Server, Shunyata Everest 8000 x 3, Omega XC x 3, Omega QR x 2, Furutech GTX-D NCF(R) AC Receptacles |
#17
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MSxx Operating System
My error on the OS for the MSxx. The following quote is from a thread I started some time ago about weird behavior on my MS750.
"The OS is VXWorks which is designed as an embedded OS. I began life in the early 80's so it predated Linux. Apple uses it in their Airport Extreme. It was on the Mars robot." My thread was on unusual MS750 behavior, and I believe the quote was from the 5th response. I was off by several years as to its origin. But, I tried every Windows Linux File Opening program I could find, and none of them would recognize anything on the drive. Based on my experience, and the above quote from a response to my thread, I do not believe the MSxx OS is any variant of Linux. Thanks, Jim Carlson |
#18
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Quote:
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TAD Reference One MK2 Loudspeakers, Esoteric Grandioso M1 Monoblock Amplifiers, Esoteric Grandioso C1 Linestage Preamplifier, SilenZio Music Server, Shunyata Everest 8000 x 3, Omega XC x 3, Omega QR x 2, Furutech GTX-D NCF(R) AC Receptacles |
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